MYDAS. 319 



much less conspicuous. Claws distinct, pulvilli pale brownish- 

 yellow. Wings dark blackish brown, a little paler towards tip 

 and hind margin, and with a strong violet tinge. Halteres and 

 squamae black, the latter with a narrow fringe of dark brown 

 hairs. 



Length, <$ 25 inm., $ 27 mm. 



Described from a single pair, the <3 from Darjiling, v. 1912, the 

 $ from Singla, iv. 1913. 



252. Mydas annulata, Brun. 



C'ephalocera annulata, Brunetti, Rec. Ind. Mus. vii, p. 513 (1912). 



c? . Head : frons rather more than one-third width of the head, 

 with a small swelling on each side of vertex, contiguous to the 

 corners of the eyes ; proboscis short. The whole head moderately 

 shining black, with rather thick and long whitish-grey pubescence 

 over frons and face except lower part of the latter ; occiput black, 

 with whitish-grey hairs, which are longer on lower part of head. 

 Antennae all black, long ; 2nd joint very short, 3rd joint with an 

 impressed constriction at some distance before its tip; beyond the 

 constriction the joint is slightly thickened ; style long, nearly as 

 long as rest of antennae, black, with an impressed constriction at 

 nearly one-third of its length, the style thickening upically except 

 at extreme tip, where it is slightly but obviously narrower. 

 Thorax black, a grey tomentose stripe at each side of the dorsum, 

 a short one from each shoulder, narrowing rapidly and not reach- 

 ing centre of dorsum ; the middle of the posterior margin also 

 grey tomentose ; the whole dorsum covered with tine grey pubes- 

 cence, which is a little longer beiow the shoulders and on the side 

 stripes. Scutellum broad, extremely short, shining black, bare ; 

 sides of thorax moderately shining black, with a little grey 

 pubescence on the pleurae. Abdomen shining black; posterior 

 margins of all segments (indistinctly on the 1st segment) with a 

 narrow, but clearly-defined, pale whitish-yellow border; whole 

 surface of abdomen with depressed pubescence, which is dark 

 brown or blackish on basal halt' (or thereabouts) of each segment 

 and pale grey on apical half. Venter similar, the yellowish-white 

 bands 'passing over the sides of the segments and continued 

 narrowly across the ventral surface. Geuitalia comparatively 

 small, black ; a dorsal plate, a pair of moderately long finger-like 

 claspers, and some yellowish-brown internal organs. Legs black ; 

 shortly and normally grey pubescent ; base of hind tibiae and tarsi 

 slightly brownish yellow. Wings pale grey ; venation in exact 

 agreement with Macquart's figure of Cephalocera nigra (Dipt. 

 Exot. i, pt. 2, pi. i, fig. 3) ; halteres black. 



Length, 15 mm. 



Described from two 6 6 in the Indian Museum from Bhoira- 

 kund, Darrang District, Assam-Bhutan Frontier, 18-22. x. 1912 

 (Kemp). 



